US-Indian Space Mission Reveals Significant Subsidence in Mexico City
The US-Indian NISAR (NASA-ISRO Synthetic Aperture Radar) satellite has mapped significant subsidence in Mexico City, revealing ground movement beneath one of the world's fastest-sinking capitals. The satellite's powerful radar system, capable of penetrating clouds and vegetation, has detected subsidence of up to a few centimeters per month between October 2025 and January 2026. This subsidence is primarily due to extensive groundwater pumping and urban development, which have compacted the ancient lakebed beneath the city. The issue, first documented in 1925, has led to infrastructure damage, including to the city's Metro system. NISAR's L-band radar is designed to track subtle land motions, providing real-time data on changes across Earth's surface. 
